Hydrocarbon-oil vaporizer and burner



(No Model.) 2 Sheets-Sheet 1..

H. P. ROBERTS. HYDRQOARBON 01 VAPORIZEB. AND BURNER.

No. 477,872. Patented June 28, 1892 a e h S w e e h S 2 (No Model.)

HYDROGARBON OIL VAPORIZER AND BURNER.

' Patented June 28, 1892. v

cm, FNDTO'LIIHE, mum

heat the retort or vaporizer, to adapt a burnerv UNITED STATES PATENTOFFICE.

HENRY P. ROBERTS, OF JAMEsTowN, NEWQYORK.

HYDROCARBON-OIL VAPORIZER AND BURNER.

SPECIFICATION forming part of Letters Patent No. 477,872, dated June 28,1892.

Application filed May 17, 1889. Renewed December 5, 1891. Serial No.414.191. (No model.)

izer and burner adapted for the vaporizing and burning of crudepetroleum or other bydrocarbon oils; and among the objects in View areto provide a vaporizer and burner of the class described adapted togenerate the greatest amount of heat from the least amount of oil and tocombine with this vapor air, thereby increasing the heat, and deliverthe same in such a manner as to secure the full benefit of its heat andto thoroughly thus constructed for connection with asteamboiler and insuch a manner as to secure the full draft of the boiler, to so arrangethe burner as to deliver the flame directly into the fines of theboiler, and to provide ameans for carrying off the oil-tar from thevaporizer or retort and delivering the same, and, further, to so locatethe mixing-chamber as to prevent the same from becoming unduly heated orheated to that extent as to form carbon in its valve-chamber, and thusdestroy the discharge of vapor into the mixing-chamber.

The invention consists in certain features of construction hereinafterspecified, and particularly pointed out in the claims.

Referring to the drawings, Figure 1 is a central vertical section ofthat class of boilers known as fire-tubes or tubular boilers providedwith a burner arranged in j uxtaposition and constructed in accordancewith my invention. Fig. 2 is an end elevation of the same. Fig. 3 is ahorizontal longitudinal section on line or m, Fig. 2, of themixingchamber and the retort or vaporizer, the parts being shownenlarged. Fig. 4 is a front elevation of the retort or vaporizer indetail. Fig. 5 is a rear elevation of the same and its connecting-pipes,and Fig. 6 is a detail in section of the lower portion of the tar-pipeand its valve.

Like numerals of reference indicate like parts in all the figures of thedrawings.

I have herein shown my invention as apinvention is equally applicable toother types of boilers, the same being accomplished either by the samearrangement, hereinafter described, or such slight changes as maysuggest themselves to any ordinary mechanic or other person skilled inthe art to which my invention appertains.

1 represents a boiler; 2, the diaphragm; 3, the fire-tubes; 4, thefire-box; 5, the grate; 6, the ash-pit, and 7, a door, which may be ofthe ordinary fuel-poke or especially-constructed door, as described. 4Referring more particularly to Figs. 1 and 3, 8 represents themixing-chamber, which is of cylindrical form and having the opendischarge end 9, near the end of which is located an annular ring ordiaphragm 10. The rear end of the mixing-chamber 8 is conical in formand provided with openings 11 and terminates in a screw-threaded boss12, having I an interior conicalshaped valve-seat 13, communicating withthe interior of the chamber. 14 represents a valve-chamber provided witha valve-stem 15, screw-threaded therein, the needle end 16 of which isadapted to operate in the seat 13, all as clearly shown in Fig. 3. Thiscompletes the burner, and the same is inserted in an opening 17, formedin about the center of the door 7 of the boiler and projected throughsaid door merely sufficiently far to deliver the vapor into the boiler,whereby about half of the chamber and its entire valve and adjuncts arelocated outside of the boiler Where they may be controlled by theoperator. in the door 7 and serve to deliver an annular draft ofairaround the burner 8 to com mingle with the vapor after the same hasleft the burner. The openings 11 in'the chamber 8 furnish sufficient airfor a proper com mingling with the vapor before emission.

Referring more particularly to Figs. 1, 4, and 5, 19 represents theretort or vaporizer, which is located within the fire-box 4 of theboiler and in line with the mixing-chamber. The retort orvaporizerconsists of a front plate 20, having annnlarly-formed oppositewalls 21, which form an annular chamber 22. At the center of the retortis formed a concave cap 23, maintained in position by means of hollowOpenings 18 are also provided ICO arms 24, diametrically oppositeandconnecting the caps and annular chamber 22. A nipple 25 is formed at thecenter of the front plate 20 of the retort, and screw-threaded to thesame is an elbow-coupling 26, to which is connected the oil-supply pipe27, which extends through the' end wall of the boiler, is provided witha cut-off 28, and communicates with the reservoir 29.

30 represents the vapor-pipe, which communicates with the annularpassage 22 and leads from thence at its upper portion down to thefire-box through the end of the boiler and into the valve-chamber 14:,where it supplies vapor through the valve 13 to the chamber 8 and isthere mixed with air.

From the lower portion of the annular recess 22 of the retort 19 thereextends a depending pipe 31, which passes out through the end of theboiler and is provided'at its end with a weightedvalve 32, and under thepipe is arranged a receptacle 33. The pipe 31 is intended to carry offthe tar which is the residuum from the oil after vaporization anddeposit the same in the receptacle 33, thus preventing the clogging ofthe retort.

The operation of my invention will beatonce apparent and may be brieflystated as follows: To start the fire, a small preliminary fire iskindled upon the grate 5 for the purpose of heating the retort 19, or,if desired, a lamp for this purpose may be employed. The cut-oft 28 isopened-and oil supplied from the reservoir 29 through the pipe 27 anddelivered into the conical cap 23 and distributed at'ter vaporizationthrough the arms 24 into the annular recess 22. The natural expansion ofthe vapor causes the same to rise to the upper portion of therecess 22,and is conducted oh? by the pipe 30 to the valve 14 and by thevalve-stem is emitted into the mixing-chamber in regulated quantities,in which chamber it is thoroughly commingled with the air which is drawnin by the suction of the vapor through the openings 11, and is thendischarged through the opening 9, where it is further mixed with air andgets the fulltorce of the draft of the boiler and is discharged againstthe heated retort 19, by which the retort is maintained heated and aconstant vaporization of oil takes place. The flame caused by the vaporcoming in contact with the retort is discharged in a volume from aroundthe retort and also through opposite semi-annular openings 34:, formedin the retort around the cap 33, and is passed through the fire tubes orfines and thoroughly heats the water in the boiler.

Having thus described my invention, What I claim is 1. The combination,with the fire-box of a boiler, of a mixing chamber and burner mounted inthe end wall thereof, a retort having a continuous circular passage, acentral concave cap, and a transverse chamber communicating with thecircular passage, mounted in the box in line with the chamber, asupply-pipe communicating with the cap, a vapor-pipe communicating withthe circular passage and with a valve-chamber mounted on themixing-chamber, and a tar-pipe leading from the lower end of thecircular passage, substantially as specified.

2. The combination, with the fire-box 4, having the door 7, perforatedat 17 and 18, of a mixing-chamber 8, mounted in the perforation 17 andhaving the open end 9, the perforated conical end 11, the intermediateperforated diaphragm 10, and terminating in the valve-seat portion 13,exteriorly screw-thread ed, as at 12, the valve-chamber 14:, mounted onthe threads and carrying valve-stem 15 and valve 16, the retort 19,mounted in line with the chamber 8 within the boiler and having theannular passage 22, cap 23, inter-.

Witnesses:

M. D. STONE, A. J. SHAW.

